Canon LBP-860 User manual

LBP-860
SERVICE
MANUAL
Canon
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PREFACE
This Service Manual contains basic information required for after-sales service of the LBP-860
laser beam printer lhereinafter referred to as the “printer”). This information is vital to the
service trchnirian in maintaining the high print quality and performance of the printer.
The rasselle paper feeder and envelope feeder are prepared for the printer as an optional
equipment, which rontenis are also described in this manual.
This manual consists of the following chapters:
Chapter 1: General Desrriplion
Features. specifications. and operation
Chapter 2: Operation ancl Timing
A description of the operating principles and timing sequences of the electrical and
mechanical systems.
Chapter 3: The Mechanical System
Explanation of mechanical operation, disassembly, reassembly, and adjustment
procedures
Chapter 4:
lnstallatlon
Kequirements for a suitable location, installation procedures, plus the storage and
handling of EP-E cartridges
Chapter 5: Mainlmanre and Servicing
Parts replacement schedule, tools, lubricants. and solvents
Chapter 6: Troubleshooting
Heferenrr values and adjustments: troubleshooting procedures
Appendix: General timing chart, general circuil diagram, PCB circuit diagrams, etc.
Information in this manual is subject to change as the product is improved or redesigned.
All relevant information in such cases will be supplied in Service Information Bulletins.
A thorough understanding of this printer. based on information in this Manual and Service
Information Bulletins, is required for maintaining its performance and for locating and
repairing the cause of malfunctions.
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CONTENTS
CHAPTER 1 GENERAL DESCRIPTION
I. FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l-l
IV. PARTS OF THE PRINTER . . . . . . . . l-8
II.
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . 1-2 V.
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
III. A SAFETY INFORMATION..... 1-7
CHAPTER 2 OPERATION AND TIMING
I. BASIC OPERATION ................. 2- 1
A. Functions.. ........................ 2-l
B. Outline of the Electrical
System .............................. 2-2
C. DC Controller Input
Signals .............................. 2-3
D. DC Controller Input/
Output Signals .................. 2-4
E. Basic Sequence of
Operations.. ....................... 2-6
II. LASER/SCANNER SYSTEM.. ... 2-7
A. Outline .............................. 2-7
B. Scanning Exposure ............ 2-S
C. Laser Control Circuit.. ....... 2-10
D. Scanner Drive.. .................. 2-13
III. IMAGE FORMATION SYSTEM . 2-15
.Outline.. ............................ 2-15
B. Printing Process.. .............. 2-17
C. High-Voltage Power Supply 2-23
lV. PICK-UP/FEED SYSTEM.. ....... 2-27
A. Outline.. ............................ 2-27
B. Paper Size Detection ......... 2-28
C. Cassette Feed.. .................. 2-29
D. Fixing and Delivery Unit.. .. 2-30
E. Paper Jam Detection.. ....... 2-33
V. OVERALL CONTROL SYSTEM. 2-35
.Outline.. ............................ 2-35
B. Operation.. ........................ 2-36
C. Video Controller PCB.. ....... 2-37
D. Control Panel.. .................. 2-40
E. Self-test.. ........................... 2-41
F. Status/Error Message.. ...... 2-42
VI. POWER SUPPLIES .................. 2-55
.Outline.. ............................ 2-56
B. Protective System ............. 2-55
VII. ENVELOPE FEEDER ............... 2-56
A. Outline of the Electrical
System.. ............................ 2-56
B. Pick-up/Feed System ........ 2-57
C. Paper Jam Detection.. ....... 2-59
VIII. PAPER FEEDER...................... 2-60
A. Outline of the Electrical
System .............................. 2-60
B. Pick-up/Feed System ........ 2-61
C. Paper Jam Detection.. ....... 2-61
CHAPTER 3 THE MECHANICAL SYSTEM
I. EXTERNAL8 ........................... 3-1 III. PAPER TRANSPORT SYSTEM .. 3-7
A. Covers and Panels ............. 3-1 A. Paper Pick-up Unit.. ........... 3-7
B. Exhaust Fan.. .................... 3-4 B. Cassette Pick-up Roller.. .... 3-Q
C. Control Panel Unit.. ........... 3-5 C. MP Tray Pick-up Roller.. .... 3-Q
II. DRIVE SYSTEM ...................... 3-6 D. Separation Pad .................. 3-10
A. Drive Unit.. ........................ 3-6 E. Paper Delivery Unit ........... 3-10
B. Main Motor.. ...................... 3-6 IV. EXPOSURE SYSTEM.. ............. 3-l 1
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A. Laser/Scanner Unit . . . . . . . . . . . 3-11
V. ELECTROSTATIC IMAGING/
DEVELOPING/CLEANING
SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
A. EP-E Cartridge . . . . . . . . . . . . . . . . . . . 3-12
B. Transfer Charging Roller.... 3-13
VI. FIXING SYSTEM . . . . . . . . . . . . . . . . . . . . . 3-14
A. Fixing Unit ..,.. . . . . . . . . . . . . . . . . . . . 3-14
VII. ELECTRONIC COMPONENTS . . 3-18
A. Video Controller Unit . . . . . . . . 3-18
B. Video Controller PCB.. ....... 3-19
C. DC Controller PCB ............. 3-20
D. Pick-up Motor Driver PCB.. 3-21
E. SensorPCB.. ...................... 3-21
F. Power Supply.. ................... 3-22
G. High-voltage Power
Supply
PCB........................ 3-23
VIII. ENVELOPE FEEDER............... 3-24
IX. PAPER FEEDER.. .................... 3-28
CHAPTER 4 INSTALLATION
I. CHOOSING A LOCATION.. ....... 4- 1 A. Storage of Sealed
II. UNPACKING AND Cartridges ......................... 4-6
INSTALLATION ....................... 4-2 B. Storage of Unsealed
111. STORAGE AND HANDLING OF Cartridges ......................... 4-6
CARTRIDGES
......................... 4-6
C. Handling Suggestions ........ 4-7
CHAPTER 5 MAINTENANCE AND SERVICING
I. PARTS REPLACEMENT A. Standard Tools .................. 5-2
SCHEDULE..
........................... 5-1 B. Special Tools.. ................... 6-3
II. EXPECTED SERVICE LIVES
V.
LIST OF LUBRICANTS.
OF CONSUMABLES..
............... 5-1 CLEANERS ............................. 5-4
III. PERIODIC SERVICE
VI. SERVICE CHECKPOINTS ........ 5-5
SCHEDULE.. ........................... 5-l VII. MAINTENANCE BY
IV. LISTS OF TOOL6.. .................. 5-2 CUSTOMER.. .......................... 5-7
CHAPTER 6 TROUBLESHOOTING
I.
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . 6-l
A. Initial Check . . . . . . . . . . . . . . . . . . . . . 6-l
B. Basic Procedure . . . . . . . . . . . . . . . . . 6-2
C. How to Use the
Troubleshooting Tables...... 6-3
II.
EXPLANATION FOR SPECIAL
TOOL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
A. Printer Driver Tester . . . . . . . . . 6-4
III. MEASUREMENT AND
ADJUSTMENT
. . . . . . . . . . . . . . . . . . . . . . . . 6-7
A. Image Adjustment . . . . . . . . . . . . . 6-7
B.Mechanical Adjustment . . . . . 6-7
C. Electrical Adjustment . . . . . . . . 6-9
IV. IMAGE DEFECTS . . . . . . ,...........a. 6-14
A. Examples of Image Defects 6-14
B. Troubleshooting Image
Defects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
V.
TROUBLESHOOTING
MALFUNCTIONS ..,. . . . . . . . . . . . . 1.1.. 6-28
VI. PAPER TRANSPORT
TROUBLESHOOTING 1.. . . . . . . . . . . . 6-42
A. Print Paper Jams . . . . . . . . . . . . . . . 6-42
B.Incomplete Paper Feed . . . . . . 6-45
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VII. LOCATION OF ELECTRICAL VIILVARIABLE RESISTORS, LEDS,
PARTS/FUNCTION.. . . . . . . . . . . . . . . . . 6-46 TEST PINS, JUMPERS, AND
A. Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-46 SWITCHES ON PC BOARDS..... 6-56
B.Sensors and Solenoids . . . . . . . 6-48 A. DC Controller PCB . . . . . . . . . . . . . 6-56
C. Motor and Others . . . . . . . . . . . . . . 6-50 B. High-voltage Power
D. PC Boards . . . . . . . . . . . . . . . . . . . . . . . . . . 6-52 Supply PCB . . . . . . . . . . . . . . . . . . . . . . . . 6-57
E. Connectors . . . . . . . . . . . . . . . . . . . . . . . . 6-54 C. Pick-up Motor Driver PCB.. 6-58
D. Paper Feeder Driver PCB.... 6-58
APPENDIX
I. GENERAL TIMING CHART . . . . . . A-l VI.
SENSOR CIRCUIT . . . . . . . . . . . . . . . . . . . A-l 1
II. LIST OF SIGNAL6 . . . . . . . . . . . . . . . . . . . A-3 VII. PAPER FEEDER DRIVER . . . . . . . . A-12
HI.
GENERAL CIRCUIT . . . . . . . . . . . . . . . . . A-5
VIII. ENVELOPE FEEDER DFUVER . . A-13
Iv. DC CONTROLLER . . . . . . . . . . . . . . . . . . . A-7
IX. VIDEO CONTROLLER . . . . . . . . . . . . . A-14
V. PICK-UP MOTOR DRIVER . . . . . . .
A-9
X. EXPANSION ROM CURCUIT . . . . A-19
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CHAPTER 1
GENERAL DESCRIPTION
I. FEATURE3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l-l
II. SF’ECIFICATIONS . . . . a... . . . . . . . . . . . . l-2
III. ASAFETY INFORMATION..... 1-7
IV. PARTS OF THE PRINTER.. ...... 1-S
V.
OPERATION.. .......................... 1-12
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CHAPTER 1
1. Non-impact page printer
This non-impart (low-noise) printer USPS clectrophotographic, electronic, and laser technology
2. High print quality through use of fine toner and high resolution I600 dpil
Toner having a particle size half that of conventional Canon loner and higher resolution (600
dpi) produce clearer images.
3. Easy maintenance
The photosensitive drum. toner. primary charging roller, and drum cleaning unit are combined
into one replaceable assembly called the “EP-E Cartridge”. By the use of the customer-
replaceable cartridge, high printing quality is maintained by replacing the cartridge and simple
cleaning in I hr printer.
4. Roller charging/transfer system
Instead of the conventional corona system, a charging roller/transfer system is used for the
charging and transfer processw. The charging roller system considerably reduces the ozone
product-d by the charging system and the roller transfer system makes paper feeding more
slable.
5. Space-saving front loading for paper feed
Front loading is used to make it easier to load paper. This, along with the built-in, mulli-
purpose tray, reduces the size of the printer and the space it takes up.
6. Four paper feed methods with various options
Four-way paper f’eed~ng is made possible by installing the optional cassette paper feeder
(simply wiled the paper feeder below) and envelope feeder, in addition to the multi-purpose
tray and cassette. By combining the standard cassette with the paper feeder, up to about 750
sheets of paper van be loaded in both the upper and lower cassettes for continuous printing.
7. Automatic interface change function
Thr prinlcr has a parallel interface (Cenlronirs) and a serial interface (RS-232C). It recognizes
the Lype (parallel or serial) of data from the computer, and automatically l changes the
interface. (Automatic interface function)
I-1
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CHAPTER 1
A. Construction
l‘vw
I
~Desktop pa@ printer
‘I-intinil. method
Elcctropholoqaphy
I
,awr scanning syste”,
<ascr
Srmicondurtor laser
icar,ninc system Rotaling six-faced prism mirror (Scanning mirror)
jczmning piclr
l<~i?Z”~t~l
600 dots/inch
JwUral
600 rastc-r lines/inch
‘hotosrns~llvr mrdium OPC
L’hargint(
Roller rharging
Exposurr
Laser scanning
roner
Singlr-componrnt dry toner
l~rvclop”w”l
‘lbner projection dcvclopmrnt
I‘1mrr supply Included in
replaceabk EP-E cartridge [The r&ridge ran be used to prin
about 6,000 purges of A4/Letler-sxe paper. The average print coverage is
! II 4% m~agc dot ralio with the print density setting in the middle.)
I’apf,r fwd
Multi-purpose tray feed
Cassrtk feed [Two cassetles ran be used when the paper feeder IS
insla1led.l
I‘I-~U~Sfil-
Roller transfer
Srp~~r-;ltK,”
Curvature: (small drum radius/paper stiffness)
Clrxring
Blade
Fixing
; Heat roller (500 w [ 115 VI UT 500 w (240 VI)
Print delivery Fare-down
l-2
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CHAPTER 1
B. Performance
-
I
About 8 pages/min (A4 or Letter)
24 sor less (The amount of time from when the printer rer~wes a /PRNT
signal from the video controller when it is ready al an amhienl
temprralure of 20°C until the deliver of an A4/Letler-size paper.)
60 s or less (115- or 2.40-v power source)
75 s or less (loo- or 220-v power source)
(The ~~l~ount of time aflrr the printer is turned ON until the completion o
the w;un-t~p tinw at an ambient temperalure of 20°C with a rated voltag
input.)
Plain paper, colurcd paprr. lahels. OHP film, rnvelopes
l’lain pap”’ from 182 mm X 257 mm to 2 I6 mm X 356 mm (Canon-
approvrd paprr, 60 g/m’ to 128 g/m”), and above type of paper
I’laitr paper of A4. B5, Legal. Letler, or Executive (Canon-approved paper
60 g/ml to 90 g/m’)
Up lo 10 mm stack height (about 100 shrels of80 g/m’ paper)
A4. Letter. liniwrsal (Lc@l, Letter. A4, Execuliw, B5)
IJp to 25 mm stark height (aboul 250 sheets of 80 g/m’ paper)
Up lo 25 mm stack height (about 250 sheets of 80 g/m2 paper)
Enwlopr ferdrr and paper leeder
C. Others
Noise levrl (DECLARED
NOISE EMISSIONS in
awordanrr with IS0
9296)
L)imrnsions
Wright
IO to 32.5’C (50 to 90.5-F]
20 to RO”/u RH
570 to 760 mmHg
Max. about 660 W (at ambient temperature of 20°C and rated
power source Volta@)
SOUND POWER LEVEL (lB=lO dB) 6.2 B or less (printin@
4.5 B or less (standby)
SOUND PRESSURE LEVEL 49 dB or less (printi&
(Bystander positions) 33 dB or less (standby)
424 mm X 4 16 mm X 295 mm (width X depth X heIghtI
17.0 kg (printer). 1.5 kg (cartridge). 1. I kg (A4 or Letter cassrttel
100-l I5 V (50/60 Hz], 220-240 V (50 Hz)
(Voltage tolerance ilO%)
1-3
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D. Video controller
1
E. Envelope feeder (Envelope Feeder EF-4)
Standard: Enhanced PCL (PCL 5e)
Emulahon: Optional PoslScript’M
2MB (Expandable to 66 Megabytes in total with optional RAM SIMM)
2MU (Expandable lo 8 Megabytes in total with optional ROM SIMM)
See table 1-I and 1-2.
See figure l-l.
2 SlOlS
1
KS-232C. asynchronous. 300, 600. 1200. 2400, 4800.9600. 19200. or
38400 baud
Data Icngth: 7 or 8 bits
Parity: 11 desired
Slop bits: I or 2
Handshaking: XON-XOFF. ETX-ACK, or DTR
s-bit parallel (Ccntronirs standard) interface
[‘irk up spwd Aboul
6 env&prs/min
Envrlolx typ’ COM- 10. DL. Monarch. C5, B5 (recommended envelope)
~~~~v~~lol~~ size Envelopes from 90mm X 189mm to 178mm X 254mm
i:;lpx ilv
Up to 55 mm stark height (about 75 envelopes)
I’0wer supply ~ DC24V (SuppIled by the printer)
Dimensions
306.5 X 293 X 127.9 mm (width X depth X height)
Wright About 2.6 kri
F. Paper feeder (Paper Feeder Unit PF-4s / PF-4L)
Casseile specifications
Power supply
Dimensions
Wciehl
EP-E Cassette 500 Universal S [letter, A4. Executive)
EI’-E Cassette 500 Universal L (Legal, Letter, A4, Executive)
Up to 50 mm slack height (about 500 sheets of 80 g/m’ paper)
DC24V (Supplied by the printer)
416 X 470 X 132 mm (width X depth X height) (including legal cover)
About 3.9 ke loauer feedert. about 2 kc (universal cassette1
Specifications are subject to change with product improvement. 1
l-4
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CHAPTER 1
Table l-l
*Scalable Fonts
Font
ID
1000
IO03
1004
1007
IO08
1010
IO11
1012
1013
1014
1015
1016
1017
1018
1019
102 I
1023
IO24
1025
1028
103 1
1033
1034
1035
1036
1037
1038
1039
1040
104 1
1042
1043
1044
1045
1046
-
Typefact-
C0llIier
Courier
Courier
Courier
CG Times
CG Times
CG Time
CG Times
Letter Gothic
Letter GOthic
Letter Golhir
CG Omega
CG Omega
CG Omega
CG omega
COi-OlX9
ClX?lldOll
Univrrs
Univrrs
Univers
Univrrs
Univers
Univrrs
Univcrs
Univers
AnliqueOlv
AntiqueOh
AntiqueOh
Garmond
Garmond
Garmond
Garmond
Marlgold
Aibertus
Aibertus
ArIai
A&l
Aria1
Ariai
Symbol
Times New
Times Bd
Times New It
Times New Bdi
Wingdings
I
I
I
I
I
1
1
I
I
I
I
I
I
I
t
Symbol
set
ioman-
ioman-
ioman-
ioman-
<ornan-
ioman-
ioman-
7oman-8
ioman-
iOmaw8
ioman-
ROIIIX-8
Roman-8
Roman-8
Roman-8
Roman-8
ROKK3n-E
Roman-t
Roman-E
Roman-$
Roman-E
Roman-E
Koman-t
Roman-t
Roman-E
ROITIX-E
ROman-t
Roman-F
Roman-t
ROITXX-t
Roman-F
Roman-E
ROIIXXVE
Roman-E
Roman-E
Roman-E
Roman-E
ROIK%Vt
ROIIlan-E
ROlllan-E
Roman-E
ROman-E
ROllXUl-E
ROman-E
Roman-E
Spacing Pitch Point
ICPil Size
,. ‘L
Fixed
Proportional
Scalable
Proportional
Proportional
Proportional
Fixed
Fixed
Fixed
Proportional
Proportional
Proportional
Proportional
Proportional
Proportional
Proportional
Proportional
Proportional
PrOpOrtiOIlal
Proportional
Proportional
Proportional
Proportional
Proporliondl
Proportional
Proportional
Proportional
ProportIonal
Proportional
ProportIonal
Proportional
Proportional
ProportIonal
ProportIonal
Proportional
Proportional
Proportionai
ProportIonal
Proportlonai
Proportional
PrOpOltIO~.3i
ProportIonal
Proportional
I
Stroke
Weight
Medium
Bold
Medium
Bold
Medium
Bold
Mrdium
Bold
Medium
Bold
Medium
Medium
Bold
Medium
Bold
Medium
Bold
Medium
Bold
Medium
Bold
Medium
Bold
Medium
Bold
Medium
Bold
Medium
Medium
Bold
Medium
Bold
Medium
3mlI BoIc
Ex Bold
Medium
Bold
Medium
Bold
Medium
Medium
Bold
Medium
Bold
Medium
I
Style
Lipright
Upright
Italic
Italic
Upright
Upright
Italic
Italic
Upright
Upright
Italic
Upright
Upright
Italic
Italic
Italic
Upright
Upright
Upright
italic
italic
Cond
Cond
Cond It
Cond It
Upright
Upright
Italic
Upright
Upright
Italic
Italic
Upright
Upright
Upright
Upright
UprIght
Italic
Italic
Upright
Upright
UprIght
Italic
Italic
Upright
1rIr‘ntation
Portrait
Portrait
Portrait
Portrait
Porlrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portraii
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Pot-trait
POrtrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
Portrait
I
1-5
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CHAPTER 1
*Fixed Fonts Table l-2
1002
1047
I050 i
1051
1052
Symbol
1 set
I
Roman-8
IS0 LJ
PC-8
: J’C-R DN
PC-850
LEGAL
IS0 LJ ~
PC-8
PC-R IIN I
PC-850
Sparing Pitch Point Stroke
(CPJJ sixe
Weight
FIxed 16.67 8.5
Fixed 16.67 8.5
Fixed 16.67: 8.5
Fixed 16.67 8.5
Fixed
16.67 8.5
Fixed 16.67 8.5
Fixed 16.67 8.5
Fixr d 16.67’ 8.5
Fixed 16.67 8.5
Fixed 16.67, 8.5
Medium
Medium
Medium
Medium
Medium
Medium
Medium
Medium
Medium
Medium
T
I
I
I
I
1056
Linr I’rintcr I,EGAL
~ Fixed ( 16.671 8.5 Medium
I
5mm
f
Bottom ~ff(
sctlve printing area
(Image quality is guaranteed in this area.)
Right
t
Feed-out dIrection
Figure l-l
Style
Orientation
Upright Landscape
Upright Portrait
Upright Portrait
Upright Portrait
Upright Portrait
Upright Portrait
Upright Landscape
Upright Landscape
Upright Landscape
Upright Landscapc
Upright , Landscape
1-6
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A. Handling the Laser/Scanner Unit
The laser/scanner unit emits invisible
lasrr beam. Never disassemble the unit;
lhc reflected bram. although invisible. ran
possibly damage your eyes. The unit
rannot be adjusted in the field. The
following label is altached to the cover of
lhe unit:
Figure 1-2
1-7
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CHAPTER 1
A. External View
1. Printer
Figure l-3
Figure 1-4
I: Upper cover
2: Face-down tray
3: Right rover
4: Control panel
5: Font card slot
6: Power switch
7: Cassette
8: Multi-purpose tray
9: Test print switch
10: Delivery cover
11: Power receptacle
12: Parallel interface connector
13: Serial interface connector
14: Cleaning brush
15: Paperaccessdoor
Figure 1-5
1-8
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2. Paper feeder
1: Paper feeder
2: Cassette (500 sheets can be placed)
Figure 1-6
3. Envelope feeder
Figure l-7
1: Envelope side guide
2: Exlension tray
3: Weight
1-9
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CHAPTER 1
B. Cross Sectional View
1. Printer
1: Delivery rollers
2: Lasw/scanner unit
3: EP-E cartridge
4: Control panel
5: Multi-purpose tray
6: Cassette
7: Mulli-purpose tray pick-up roller
8: Separation pad
Figure 1-s
9: Oblique rollers
10: Cassette pick-up roller
11: Developing cylinder
12: Transfer charging roller
13: Photosensitive drum
14: Primary charging roller
15: Upper fixing roller
16: Lower fixing roller
l-10
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CHAPTER 1
3. Envelope feeder
Figure 1-9
l-11
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CHAPTER 1
A. The Operator Panel
You use the operalor panel to perform basic printer operations, make printer configuration
changes your software application cannot control, identify available typefaces, and check the
status of the printer.
READY ALARM DATA a
on 1
4zl
ON LINE FORM FEED RESET
I-
MENU COPQINUE
TEST/fONTS
ENTER
Figure l-10
The operator panel consists of the message/menu display window, eight indicator lights, and
sewn menu and operation keys.
1. Message/Menu Display Window
The message/menu display window can display as many as 16 characters. It displays menu
items you can select, and messages that describe lhe status of lhe printer and error conditions.
This chapter describes the menu items you can display in the window. See Chapter 6
‘Troubleshooting, for information about the types of messages that may appear in the window.
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CHAPTER 1
2. Indicator Lights
The indicator lights provide status information about the printer. The lights have different
meanings depending on whether they are on, off, or flashing.
-_
-
Figure l-11
Indicator
light Mode Description
READY
ALARM
DATA
ON LINE
Off
Flashing
On
Off
On
Off
On
Off
The printer is ready to print.
An error or attendance message appears in the display.
The printer is receiving data.
An error has occurred and printing is disabled. An error or
attendance message appears in the display.
No error has occurred.
Print data is currently stored in the printer’ s buffer.
No buffered data is in the printer.
The printer is ready to accept and print data from the computer
[on-line status).
The printer cannot accept print data from the computer (off-line
status). When the printer is off-line.
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CHAPTER 1
The paper input source indicators are:
~~~~ ENVELOPE FEEDER
STANDARD CASSETTE
LOWER CASSETTE
(PAPER FEEDER UNIT)
-~~ MUCKPURPOSE TRAY
Figure 1-12
indicator light Mode
Description
Envelope
Feeder
Multi-purpose
tray
Standard
cassette
Lower
cassette
On
Flashing
On
Flashing
On
Flashing
The optional Envelope Feeder is the input source.
The optional Envelope Feeder is selected, but does not
contain envelopes.
The multi-purpose tray is the input source.
The multi-purpose tray is selected, but does not contain
paper.
The paper cassette tray is the input source.
The paper cassette tray is selected, but does not contain
paper.
On
The optional Paper Feeder Unit is the input source.
Flashing The optional Paper Feeder Unit is selected, but does not
contain paper.
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